* unistd-safer.m4 (gl_UNISTD_SAFER): Check for missing pipe.

[gnulib.git] / m4 / obstack.m4

diff --git a/m4/obstack.m4 b/m4/obstack.m4
index b702aee..ea60f7f 100644 (file)
--- a/m4/obstack.m4
+++ b/m4/obstack.m4
@@ -1,15 +1,23 @@
-dnl From Jim Meyering.
-dnl FIXME: migrate into libit.
+# obstack.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
 
-AC_DEFUN(AM_FUNC_OBSTACK,
-[AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
- [AC_TRY_LINK([#include "obstack.h"],
-             [struct obstack *mem;obstack_free(mem,(char *) 0)],
-             am_cv_func_obstack=yes,
-             am_cv_func_obstack=no)])
- if test $am_cv_func_obstack = yes; then
-   AC_DEFINE(HAVE_OBSTACK)
- else
-   LIBOBJS="$LIBOBJS obstack.o"
- fi
+AC_DEFUN([gl_OBSTACK],
+[
+  AC_FUNC_OBSTACK
+  dnl Note: AC_FUNC_OBSTACK does AC_LIBSOURCES([obstack.h, obstack.c]).
+  if test $ac_cv_func_obstack = no; then
+    gl_PREREQ_OBSTACK
+  fi
+])
+
+# Prerequisites of lib/obstack.c.
+AC_DEFUN([gl_PREREQ_OBSTACK],
+[
+  AC_REQUIRE([gl_AC_HEADER_INTTYPES_H])
+  AC_REQUIRE([gl_AC_HEADER_STDINT_H])
+  AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])
+  :
 ])